Improvement in rolling shutters



2 Sheets--S'hgetL H. VON LANGEN 8L ADAM ROBB.

Irprovement in Rolling Shutters.

No.l2'3,8-02. afented Feb. 20,1872.

Fig. 1.

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Witnesses Inventors H V-O N LA N G E N 8L ADA M RO B B.

Improvem ent iny Rolling Shutters. N0;12s,8202.

Patented Feb. 20,1872. Fig. 3.

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Inventors awr/V1,

Wtn esses y AMfnara-umamAm/c cn N n lasso/m53' F/fatfsx/ v UNITED STATESPATENT OFFICE.

HERMAN VON LANGEN AND ADAM ROBB, OF CHICAGO, ILLINOIS.

IMPROVEMENT IN ROLLING SHUTTERS.

Specification forming part of Letters Patent No. 123,802, dated February20, 1872.

' a new and useful Improvement in Rolling Shutters, and we do herebydeclare the following to be a full, clear, and exact descriptionthereof, reference being had to the acco1npanying drawings forming partof this speciiication, and in which-- Figure l is a vertical centralsection of our improvement taken between the sides of the frame; Fig. 2,a horizontal section ofthe same; and Fig. 3, an inside eleva-tion.

Similar letters denote like parts in the dii'- ferent ligures.

A A represent the sides of the frame, between which the sash and shuttermove. The slats moving over the roller C and coiled around the rollerl), which are arranged above the window within a box; or, the shuttermay travel over a roller or rollers and rest in a bed formed between theceiling and Hoor, the latter so constructed immediately over the saidbed, that it maybe easily removed when the shutter might need inspectionor repair. rllhe shutter is raised and lowered by any ofthe known means,and the slats are divided in three sections, E, F, and G, and soconnected that while the end sections are capable of adjustingthemselves to the rollers, the central sections F, only, are capable ofbeing made to tilt; they are attached to one of their end sections, E,by a suitable round wire or rod, a, upon which they are free to turn,and to the other, G, by another wire or rod, d, (see dotted lines Fig.3,) which is liattened the greater part of the distance it penetratesthe ends of section F; and round the balance of its extent, it passesentirely (or nearly) through the end section G. The latter has a slotcut entirely through it, equal in size to the plate H, which ts withinthe same, and is attached permanently at the top to the rod b. It hasits edges turned in toward the center, as clearly shown, and slightlybeveled for the reception ofthe lever to be presently explained, so thatit will be seen any outward movement of the bottom of plate H will openor tilt the central section F, to produce this result. Arranged withjnthe window and against the side of the frame, tpreferably the righthand,) is a ilat rod or bar, I, secured to the frame by screws or bolts,and immediately behind it another rod, K, movable vertically throughbearings c d, which are secured to the frame. The lower end of this baris slightly curved at a point even with the foot of rod I, and thencarried down straight, so that the lower extremity of K will be in thesame plane with the rod I. The lower extremity of the rod K is formedwith teeth or cogs, which mesh into a pinion, L, secured to the axis ofa hand-wheel, M, secured in proper bearings to the frame, so that theturning of the wheel M will cause the rear rod to move vertically in itsbearings c d. Bell-crank levers or arms e are pivoted opposite to eachslat to the rod I, and reaching back across the face of the movable rodK, to which they are secured by a pin or screw passing loosely through aslot formed in said reach,

and taking into the rod, (or the rod may be provided with a series ofbolts or pins with screw threads cut thereon to receive a nut.) Theother ends of these levers are T-shaped, so that they will pass underthe turned-down edges of the plate H.

The operation is as follows: The shutter being down, to tilt or open thecentral sections of the slats, the hand-wheel M is turned to the left,when its pinion L takes into the ratcheted end of the bar or rod K,causing it to descend and bring with it the rear ends of the levers e,and, consequently, elevating the forward or T-shaped ends which moveinto the plate H, forcing it to move out at the bottom; and,consequently, through the medium of the wire b tilt the central sectionof the slat. The bottom or continuous slat, if wider than the distancebetween the levers e, should have a slot cut through it to admit of thepassage of the lowest lever when the shutter is partially raised, sothat no matter at what altitude the shutter may be drawn the slats maybe tilted, as those only below the top of the frame are aftectedby theopening mechanism, and, again, the ends of the levers e which reach backto the rod K, being secured thereto by screws, or bolts and nuts, asdescribed, may be readily rendered inoperative, (by disconnecting them,)so that any number of slats at any locality may be tilted withoutaffecting the balance. The lower or bottom slat may be provided with anydesired locking mechanism for fastening the parallel rods I K, levers e,pinion L, op-

it to the sill of the Window. erating-wheel M, rods or Wire a b, andplates Having described the construction and op- H, all constructed andoperating substantially eration of our improved rolling shutters, wl] atinthe manner and for the purpose set forth.

We claim as new, and desire to secure by Let- HERMAN VON LANGEN. tersPatent, s- ADAM ROBB.

Operating the slats of rolling` shutters at Witnesses: any particularpoint or points and Without re- EDWD. J. HILL,

gard to the position of the same, by means of SAMUEL E. DALE.

